forest-tool db destroy subcommand doesn't manage to clean the db

[elmattic]

Describe the bug

We are facing functional regression with our destroy db subcommand and this shows up when used with calibnet.

To Reproduce

1. fill forest db using some calibnet snapshot
2. use forest-tool db destroy --chain calibnet
3. See error

Log output

Log Output

Aborted. Database path /Users/guillaume/Library/Application Support/com.ChainSafe.Forest/mainnet is not a valid directory.

Expected behaviour

We should be able to destroy the db at any time and for any chain configuration.

Environment

• OS: macOS
• Branch: main

Might be related to #3608 as the command works just before this commit, but not after.